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* regarding copyright ownership. The ASF licenses this file *
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package org.apache.james.protocols.smtp.core.fastfail;
import org.apache.james.protocols.smtp.SMTPRetCode;
import org.apache.james.protocols.smtp.SMTPSession;
import org.apache.james.protocols.smtp.dsn.DSNStatus;
import org.apache.james.protocols.smtp.hook.HookResult;
import org.apache.james.protocols.smtp.hook.HookReturnCode;
import org.apache.james.protocols.smtp.hook.RcptHook;
import org.apache.mailet.MailAddress;
/**
* Handler which want todo an recipient check should extend this
*
*/
public abstract class AbstractValidRcptHandler implements RcptHook {
/**
* @see org.apache.james.protocols.smtp.hook.RcptHook#doRcpt(org.apache.james.protocols.smtp.SMTPSession, org.apache.mailet.MailAddress, org.apache.mailet.MailAddress)
*/
public HookResult doRcpt(SMTPSession session, MailAddress sender, MailAddress rcpt) {
if (!session.isRelayingAllowed()) {
if (isValidRecipient(session, rcpt) == false) {
//user not exist
session.getLogger().info("Rejected message. Unknown user: " + rcpt.toString());
return new HookResult(HookReturnCode.DENY,SMTPRetCode.TRANSACTION_FAILED, DSNStatus.getStatus(DSNStatus.PERMANENT,DSNStatus.ADDRESS_MAILBOX) + " Unknown user: " + rcpt.toString());
}
} else {
session.getLogger().debug("Sender allowed");
}
return new HookResult(HookReturnCode.DECLINED);
}
/**
* Return true if email for the given recipient should get accepted
*
* @param recipient
* @return isValid
*/
protected abstract boolean isValidRecipient(SMTPSession session, MailAddress recipient);
}